Which of the following terms describes a person who commonly breaks the mold or standard?

The term "eccentric" perfectly captures the essence of someone who deviates from conventional norms or expectations. An eccentric individual often has unique behaviors, ideas, or ways of thinking that set them apart from the average person. This deviation can manifest in various forms, such as unconventional fashion choices, unique hobbies, or innovative thinking that challenges the status quo. Eccentricity is generally viewed positively when associated with creativity and originality, as these individuals tend to contribute fresh perspectives and ideas that enrich society.

In contrast, the other terms do not convey the same meaning. A "denizen" refers to an inhabitant or resident of a particular place, which does not imply any deviation from the norm. A "dervish," often associated with Sufi mystics, is someone who exhibits ecstatic or uncontrolled behavior, but this is more about their religious practice than breaking societal molds. "Diffused" relates to something that is spread out or scattered, lacking the connotation of individualism or uniqueness found in the concept of eccentricity. Thus, "eccentric" is indeed the most appropriate choice.